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  <div class="head">
<h1><a name="title" id="title"></a>Function definition 1.0</h1>
<h2>Recommendation 22 June 2009</h2><p>Copyright ©2009 XBRL International Inc., All Rights Reserved.</p><dl><dt>This version:</dt><dd><a href="http://www.xbrl.org/Specification/functionDefinition/REC-2009-06-22/functionDefinition-REC-2009-06-22.html">&lt;http://www.xbrl.org/Specification/functionDefinition/REC-2009-06-22/functionDefinition-REC-2009-06-22.html&gt;</a></dd><dt>Editors:</dt><dd><a name="person-geoff" id="person-geoff"></a>
            Geoff Shuetrim,
  
             Galexy
             <a href="mailto:geoff@galexy.net">&lt;geoff@galexy.net&gt;</a>
         </dd><dd><a name="person-herm" id="person-herm"></a>
            Herm Fischer,
  
             UBMatrix / Mark V Systems
             <a href="mailto:fischer@markv.com">&lt;fischer@markv.com&gt;</a>
         </dd></dl><hr><div><h2><a name="status" id="status"></a>Status</h2><p>Circulation of this  Recommendation is unrestricted. This document is normative. 
          Recipients are invited to submit comments to
        <a href="mailto:formula-feedback@xbrl.org">formula-feedback@xbrl.org</a>,
        
          and to submit notification of any relevant patent rights 
          of which they are aware and provide supporting 
          documentation.
        </p></div><div>
<h2><a name="abstract" id="abstract"></a>Abstract</h2>
         <p>
        This specification is defines a syntax for an XML resource that
        contains information about an XBRL function.  Such resources can be
        referenced from the XBRL function registry.
      </p>
      </div><h3><a name="comments" id="comments"></a>Comment</h3><p class="toc">1 <a href="#d1e79">Geoff Shuetrim</a>:
          When published as a recommendation, there could be a URL for
          the function registry document here.
        <br></p></div>

  <div class="toc">
<h2><a name="contents" id="contents"></a>Table of Contents</h2><p class="toc">1 <a href="#sec-intro">Introduction</a><br>
   1.1 <a href="#sec-background">Background</a><br>
   1.2 <a href="#sec-relationship-to-other-work">Relationship to other work</a><br>
   1.3 <a href="#sec-language">Language independence</a><br>
   1.4 <a href="#sec-terminology">Terminology</a><br>
   1.5 <a href="#sec-document-conventions">Document conventions (non-normative)</a><br>
   1.6 <a href="#sec-namespaces">Namespaces and namespace prefixes</a><br>
2 <a href="#sec-syntax">Syntax</a><br>
   2.1 <a href="#sec-function-registry-entry">Function definition</a><br>
      2.1.1 <a href="#sec-last-updated">Element: lastUpdated</a><br>
      2.1.2 <a href="#sec-owners">Element: owners</a><br>
      2.1.3 <a href="#sec-summary">Element: summary</a><br>
      2.1.4 <a href="#sec-documentation">Element: documentation</a><br>
      2.1.5 <a href="#sec-reference">Element: reference</a><br>
      2.1.6 <a href="#sec-signature">Element: signature</a><br>
         2.1.6.1 <a href="#sec-input">Element: input</a><br>
         2.1.6.2 <a href="#sec-output">Element: output</a><br>
      2.1.7 <a href="#sec-error">Element: error</a><br>
      2.1.8 <a href="#sec-example">Element: example</a><br>
      2.1.9 <a href="#sec-conformance-test">Element: conformance-test</a><br>
      2.1.10 <a href="#sec-revisions">Element: revisions</a><br>
</p>
<h3><a name="appendices" id="appendices"></a>Appendices</h3><p class="toc">A <a href="#sec-schema">Normative schema</a><br>
B <a href="#sec-references">References</a><br>
C <a href="#sec-ip-status">Intellectual property status (non-normative)</a><br>
D <a href="#sec-acknowledgements">Acknowledgements (non-normative)</a><br>
E <a href="#sec-history">Document history (non-normative)</a><br>
F <a href="#sec-corrections">Errata corrections in this document</a><br>
</p><h3><a name="examples" id="examples"></a>Table</h3><p class="toc">1 <a href="#table-namespaces">Namespaces and namespace prefixes</a><br></p>
<h3><a name="definitions" id="definitions"></a>Definition</h3><p class="toc"><a href="#term-function-definition">function definition</a><br></p>
<h3><a name="error_codes" id="error_codes"></a>Error codes</h3><p class="toc"><a href="#error-number-of-arguments-mismatch">xqt-err:XPST0017</a><br><a href="#error-input-type-mismatch">xqt-err:XPTY0004</a><br></p></div><hr><div class="body">
    
      <div class="div1"><a name="sec-intro" id="sec-intro"></a>
         <h1>1 Introduction</h1>
         <p>
        This specification is defines a syntax for an XML resource that
        contains information about an XBRL function.  Such resources can be
        referenced from the XBRL function registry.
        <span class="comment"><a name="d1e79" id="d1e79"></a>[Geoff Shuetrim: 
          When published as a recommendation, there could be a URL for
          the function registry document here.
        ]</span></p>

         <div class="div2"><a name="sec-background" id="sec-background"></a>
            <h2>1.1 Background</h2>
            <p>
          This specification is intended to support the creation, maintenance,
          and publication of XBRL function definitions.
        </p>
         </div>

         <div class="div2"><a name="sec-relationship-to-other-work" id="sec-relationship-to-other-work"></a>
            <h2>1.2 Relationship to other work</h2>
        This specification works with the XBRL registry specification.
      </div>
      
         <div class="div2"><a name="sec-language" id="sec-language"></a>
            <h2>1.3 Language independence</h2>
            <p>
          The official language of XBRL International's own work
          products is English and the preferred spelling convention is
          UK English.
        </p>
         </div>
         <div class="div2"><a name="sec-terminology" id="sec-terminology"></a>
            <h2>1.4 Terminology</h2>

            <p>
          This specification is consistent with the definitions of any of the
          terms defined in specifications that it depends on.
        </p>

         </div>

         <div class="div2"><a name="sec-document-conventions" id="sec-document-conventions"></a>
            <h2>1.5 Document conventions (non-normative)</h2>

            <p><a href="http://www.xbrl.org/Specification/variables/REC-2009-06-22/variables-REC-2009-06-22.html#sec-document-conventions">
          Documentation conventions</a> follow those set out in
          the XBRL Variables Specification <a href="#VARIABLES">[VARIABLES]</a>.
        </p>

         </div>

         <div class="div2"><a name="sec-namespaces" id="sec-namespaces"></a>
            <h2>1.6 Namespaces and namespace prefixes</h2>

            <p>
          Namespace prefixes <a href="#XMLNAMES">[XML NAMES]</a> will be used 
          for elements and attributes in
          the form <code>ns:name</code> where <code class="value">ns</code> is the 
          namespace prefix and <code class="value">name</code> is the local name. 
          Throughout this specification, the mappings
          from namespace prefixes to actual namespaces is consistent
          with <a href="#table-namespaces"><b>
        Table
        1</b></a>.
        </p>

            <p>
          The prefix column in <a href="#table-namespaces"><b>
        Table
        1</b></a> is non normative. 
          The namespace URI column is normative.
        </p>
            <div class="chunkHeading"><a name="table-namespaces" id="table-namespaces"></a>Table 1: Namespaces and namespace prefixes</div><table>
               
               <thead>
                  <tr>
                     <th>Prefix</th>
                     <th>Namespace URI</th>
                  </tr>
               </thead>
               <tbody>
                  <tr>
                     <td>
                        <code class="value">
                           fcn
                        </code>
                     </td>
                     <td>
                        <code class="value">
                           http://xbrl.org/2008/function
                        </code>
                     </td>
                  </tr>
                  <tr>
                     <td>
                        <code class="value">
                           xqt-err
                        </code>
                     </td>
                     <td>
                        <code class="value">
                           http://www.w3.org/2005/xqt-errors
                        </code>
                     </td>
                  </tr>
                  <tr>
                     <td>
                        <code class="value">xml</code>
                     </td>
                     <td>
                        <code class="value">http://www.w3.org/XML/1998/namespace</code>
                     </td>
                  </tr>
                  <tr>
                     <td>
                        <code class="value">xlink</code>
                     </td>
                     <td>
                        <code class="value">http://www.w3.org/1999/xlink</code>
                     </td>
                  </tr>
               </tbody>
            </table>

         </div>

      </div>

      <div class="div1"><a name="sec-syntax" id="sec-syntax"></a>
         <h1>2 Syntax</h1>

         <p>
        This specification only provides a textual declaration of syntax
        constraints when those constraints are not expressed by the
        normative schema supplied with this specification.
      </p>
         <p>
        Explanations of elements and attributes are only supplied when
        explanations are not already provided in other
        specifications.
      </p>
         <p>
        Unless explicitly stated otherwise, a reference to a specific
        element <strong>MUST</strong> be read as a reference to that 
        element or to any element in its 
        <a href="http://www.w3.org/TR/xmlschema-1/#key-equivalenceClass">
        substitution group
        </a>.
      </p>

         <div class="div2"><a name="sec-function-registry-entry" id="sec-function-registry-entry"></a>
            <h2>2.1 Function definition</h2>

            <p><span class="definition"><a name="term-function-definition" id="term-function-definition" title="function definition"></a>
          A <span class="term">function definition</span> is an XML resource with the 
          <a href="#xml-function"><code class="element">
      &lt;fcn:function&gt;
    </code></a> element as its root.
          </span></p>

            <p>
          Function definitions are intended to be referenced by 
          <a href="registry-PWD-2008-12-31.html#term-registry-entry">registry entries</a>.
        </p>
        
            <p>
          Any attribute in the XML namespace (<code class="value">http://www.w3.org/XML/1998/namespace</code>) <strong>MAY</strong> be
          used on any element within a <a href="#term-function-definition">function definition</a>.
        </p>

            <p>
          The <code class="attribute">
      @xml:lang</code> attribute <strong>MAY</strong> be used to indicate the language used to express
          information in the registry, as per the XML Specification <a href="#XML">[XML]</a>.
        </p>

            <p>
          The <code class="attribute">
      @xml:base</code> attribute <strong>MAY</strong> be used when resolving URIs 
          as per the XML Base Specification <a href="#XMLBASE">[XMLBASE]</a>.
        </p>

            <div class="div3"><a name="sec-last-updated" id="sec-last-updated"></a>
               <h3>2.1.1 Element: lastUpdated</h3>

               <p>
            The <a href="#xml-last-updated"><code class="element">
      &lt;fcn:lastUpdated&gt;
    </code></a> element 
            contains a <code class="attribute">
      @moment</code> attribute whose value is the 
            instant on which the function definition was last updated.
          </p>

            </div>

            <div class="div3"><a name="sec-owners" id="sec-owners"></a>
               <h3>2.1.2 Element: owners</h3>

               <p>
            The <a href="#xml-owners"><code class="element">
      &lt;fcn:owners&gt;
    </code></a> element 
            contains one or more <a href="registry-PWD-2008-12-31.html#xml-owner"><code class="element">
      &lt;reg:owner&gt;
    </code></a> 
            elements, as defined in the XBRL registry specification <a href="#REGISTRY">[REGISTRY]</a>.
          </p>

               <p>
            Each owner is a person with responsibility for maintaining the
            function definition.
          </p>

            </div>

            <div class="div3"><a name="sec-summary" id="sec-summary"></a>
               <h3>2.1.3 Element: summary</h3>
  
               <p>
            The <a href="#xml-summary"><code class="element">
      &lt;fcn:summary&gt;
    </code></a> element 
            contains a brief text summary of the function.
          </p>

            </div>

            <div class="div3"><a name="sec-documentation" id="sec-documentation"></a>
               <h3>2.1.4 Element: documentation</h3>

               <p>
            The optional <a href="#xml-documentation"><code class="element">
      &lt;fcn:documentation&gt;
    </code></a> element 
            contains either a URL that resolves to documentation of the function or it contains
            XHTML <a href="#XHTML">[XHTML]</a> markup documenting the function.
          </p>

               <p>
            If the documentation is provided as a URL, then the URL is specified using a 
            <code class="element">
      &lt;reg:url&gt;
    </code> element that conforms to 
            <a href="registry-PWD-2008-12-31.html#sec-url">the registry documentation syntax rules.</a>.
          </p>

            </div>

            <div class="div3"><a name="sec-reference" id="sec-reference"></a>
               <h3>2.1.5 Element: reference</h3>

               <p>
            The <a href="#xml-reference"><code class="element">
      &lt;fcn:reference&gt;
    </code></a> element 
            contains a link to a a part of a specification that is relevant to the function
            being defined.
          </p>

               <p>
            The <code class="element">
      &lt;fcn:reference&gt;
    </code> element 
            contains an <code class="attribute">
      @xlink:type</code> attribute that equals <code class="value">simple</code> and
            an <code class="attribute">
      @xlink:href</code> attribute that contains a URI that <strong>MUST</strong> 
            resolve to the part of the specification being referenced.
          </p>

               <p>
            The <code class="element">
      &lt;fcn:reference&gt;
    </code> element <strong>MAY</strong> contain string content documenting
            the nature of the resource that the URL is linking to.
          </p>

               <p>
            A function definition <strong>MAY</strong> contain several references, if the function is related
            to several aspects of a specification or several specifications.
          </p>

            </div>

            <div class="div3"><a name="sec-signature" id="sec-signature"></a>
               <h3>2.1.6 Element: signature</h3>
  
               <p>
            The <a href="#xml-signature"><code class="element">
      &lt;fcn:signature&gt;
    </code></a> element 
            contains the signature of the function being defined.
          </p>

               <p>
            The <code class="attribute">
      @name</code> attribute on the function signature contains
            the QName that uniquely identifies the function.
          </p>

               <p>
            The <code class="attribute">
      @output</code> attribute on the function signature contains
            the data type of the output expected from
            the function.  In function signatures, data type names follow those 
            used in XQuery 1.0 and XPath 2.0 <a href="#">[]</a>.
          </p>

               <p>
            A function signature <strong>MAY</strong> also contain one or more
            <code class="element">
      &lt;fcn:input&gt;
    </code> elements that specify each 
            of the function's parameters.  There <strong>MUST</strong> be one such
            element for each parameter.  The document order of the elements 
            <strong>MUST</strong> match the order of the parameters as they are used in
            calls to the function being defined.
          </p>

               <p><span class="errordefinition"><a name="error-number-of-arguments-mismatch" id="error-number-of-arguments-mismatch"></a>
                Error code xqt-err:XPST0017, the
                <a href="http://www.w3.org/TR/xpath20/#ERRXPST0017">XPath 2.0 number of parameters error</a>,                 
                <strong>MUST</strong> be thrown
                if the number of parameters used in a function call does not match the
                number of <code class="element">
      &lt;fcn:input&gt;
    </code> elements defined for the function.
              </span></p>        

               <div class="div4"><a name="sec-input" id="sec-input"></a>
                  <h4>2.1.6.1 Element: input</h4>

                  <p>
              The <a href="#xml-input"><code class="element">
      &lt;fcn:input&gt;
    </code></a> element 
              summarises an input parameter for the function being defined.
            </p>

                  <p>
              The <code class="attribute">
      @name</code> attribute on the function signature contains
              a name for the parameter.
            </p>

                  <p>
              The <code class="attribute">
      @type</code> attribute on the function signature contains
              the parameter's data type.
            </p>

                  <p>
              XHTML content of the <code class="element">
      &lt;input&gt;
    </code> element can be used to provided additional explanation
              of the parameter.
            </p>

                  <p><span class="errordefinition"><a name="error-input-type-mismatch" id="error-input-type-mismatch"></a>
                Error code xqt-err:XPTY0004, the
                <a href="http://www.w3.org/TR/xpath20/#ERRXPTY0004">XPath 2.0 type mismatch error</a>, 
                <strong>MUST</strong> be thrown
                if an input has a type that does not match the parameter's data type.
              </span></p>        
               </div> 
               

          <div class="div4"><a name="sec-output" id="sec-output"></a>
                  <h4>2.1.6.2 Element: output</h4>

                  <p>
              The <a href="#xml-output"><code class="element">
      &lt;fcn:output&gt;
    </code></a> element 
              summarises the output of the function being defined.
            </p>

                  <p>
              The <code class="attribute">
      @type</code> attribute on the function signature contains
              the parameter's data type.
            </p>

                  <p>
              XHTML content of the <code class="element">
      &lt;output&gt;
    </code> element can be used to provided additional explanation
              of the function output.
            </p>

               </div>

            </div>

            <div class="div3"><a name="sec-error" id="sec-error"></a>
               <h3>2.1.7 Element: error</h3>

               <p>
            If a function is misused, it may be necessary to produce an error message.
            These messages are defined by the <code class="element">
      &lt;fcn:error&gt;
    </code> elements that follow the
            function signature.
          </p>

               <p>
            The <a href="#xml-error"><code class="element">
      &lt;fcn:error&gt;
    </code></a> element 
            contains information about an error that <strong>MUST</strong> be thrown under 
            specific circumstances when a function is called.
          </p>

               <p>
            The XHTML content of the <code class="element">
      &lt;fcn:error&gt;
    </code> element defines the circumstances
            under which the error is required to be thrown.
          </p>

               <p>
            The <code class="attribute">
      @code</code> attribute contains the QName that uniquely identifies the error.
          </p>

            </div>

            <div class="div3"><a name="sec-example" id="sec-example"></a>
               <h3>2.1.8 Element: example</h3>

               <p>
            The <a href="#xml-example"><code class="element">
      &lt;fcn:example&gt;
    </code></a> element 
            can be used to provide an example of function usage.
          </p>

               <p>
            The <code class="attribute">
      @title</code> attribute contains the title of the example.
          </p>

               <p>
            The <code class="attribute">
      @usage</code> attribute contains the example function usage.
          </p>

               <p>
            The XHTML content of the <code class="element">
      &lt;fcn:example&gt;
    </code> element explains the result of such usage.
          </p>


            </div>
            <div class="div3"><a name="sec-conformance-test" id="sec-conformance-test"></a>
               <h3>2.1.9 Element: conformance-test</h3>

               <p>
            The <a href="#xml-conformance-test"><code class="element">
      &lt;fcn:conformanceTest&gt;
    </code></a> element 
            contains a link to a conformance suite test that <strong>MUST</strong> be passed
            by software claiming to implement the function being defined.
          </p>

               <p>
            The <a href="#xml-conformance-test"><code class="element">
      &lt;fcn:conformanceTest&gt;
    </code></a> element 
            contains an <code class="attribute">
      @xlink:type</code> attribute that equals <code class="value">simple</code> and
            an <code class="attribute">
      @xlink:href</code> attribute that contains a URI that <strong>MUST</strong> 
            resolve to the conformance test resource.
          </p>

            </div>

            <div class="div3"><a name="sec-revisions" id="sec-revisions"></a>
               <h3>2.1.10 Element: revisions</h3>

               <p>
            The <code class="element">
      &lt;reg:revisions&gt;
    </code> element 
            conforms to the XBRL registry specification <a href="#REGISTRY">[REGISTRY]</a>.
          </p>

            </div>

         </div>

      </div>
      

  </div>

  <div class="back">

      <div class="div1"><a name="sec-schema" id="sec-schema"></a>

         <h1>Appendix A Normative schema</h1>
      
         <p>
        The following is the XML schema provided as part of this
        specification. This is normative. Non-normative versions (which
        should be identical to these except for appropriate comments
        indicating their non-normative status) are also provided as
        separate files for convenience of users of the specification.
      </p>
      
         <p>
        NOTE: (non-normative) Following the schema maintenance policy of
        XBRL International, it is the intent (but is not guaranteed)
        that the location of non-normative versions of these schemas on
        the web will be as follows:
      </p>
      
         <ol>
            <li>
          While any schema is the most current RECOMMENDED version and
          until it is superseded by any additional errata corrections a
          non-normative version will reside on the web in the directory
          <code>http://www.xbrl.org/2008/</code> - during the drafting process for
          this specification this directory should contain a copy of the
          most recent published version of the schema at
          <a href="http://www.xbrl.org/2008/function.xsd">http://www.xbrl.org/2008/function.xsd</a>.
        </li>
            <li>
          A non-normative version of each schema as corrected by any
          update to the RECOMMENDATION will be archived in perpetuity on
          the web in a directory that will contain a unique
          identification indicating the date of the update.
        </li>
         </ol>
         <div class="xml-normative"><div class="verbatim">&lt;<span class="verbatim-element-name">schema</span> <span class="verbatim"></span> <span class="verbatim"><span class="verbatim-namespace-name"> xmlns:fcn</span>="<span class="verbatim-namespace-uri">http://xbrl.org/2008/function</span>"</span> <span class="verbatim"><span class="verbatim-namespace-name"> xmlns:xsi</span>="<span class="verbatim-namespace-uri">http://www.w3.org/2001/XMLSchema-instance</span>"</span> <span class="verbatim"><span class="verbatim-namespace-name"> xmlns:reg</span>="<span class="verbatim-namespace-uri">http://xbrl.org/2008/registry</span>"</span> <span class="verbatim"><span class="verbatim-namespace-name"> xmlns</span>="<span class="verbatim-namespace-uri">http://www.w3.org/2001/XMLSchema</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">targetNamespace</span>="<span class="verbatim-attribute-content">http://xbrl.org/2008/function</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">elementFormDefault</span>="<span class="verbatim-attribute-content">qualified</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">xsi:schemaLocation</span>="<span class="verbatim-attribute-content">http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema.xsd</span>"</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">import</span> <span class="verbatim"><span class="verbatim-attribute-name">namespace</span>="<span class="verbatim-attribute-content">http://xbrl.org/2008/registry</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">schemaLocation</span>="<span class="verbatim-attribute-content">registry.xsd</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-function" id="xml-function"></a>id</span>="<span class="verbatim-attribute-content">xml-function</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">function</span>"</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">complexType</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">sequence</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-last-updated" id="xml-last-updated"></a>id</span>="<span class="verbatim-attribute-content">xml-last-updated</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">lastUpdated</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">reg:date.elt.type</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">sequence</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-owners" id="xml-owners"></a>id</span>="<span class="verbatim-attribute-content">xml-owners</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">owners</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">reg:owners.elt.type</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-summary" id="xml-summary"></a>id</span>="<span class="verbatim-attribute-content">xml-summary</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">summary</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">string</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-documentation" id="xml-documentation"></a>id</span>="<span class="verbatim-attribute-content">xml-documentation</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">documentation</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">reg:documentation.elt.type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">minOccurs</span>="<span class="verbatim-attribute-content">0</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-reference" id="xml-reference"></a>id</span>="<span class="verbatim-attribute-content">xml-reference</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">reference</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">reg:url.elt.type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">minOccurs</span>="<span class="verbatim-attribute-content">0</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-signature" id="xml-signature"></a>id</span>="<span class="verbatim-attribute-content">xml-signature</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">signature</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">fcn:signature.elt.type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-error" id="xml-error"></a>id</span>="<span class="verbatim-attribute-content">xml-error</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">error</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">fcn:error.elt.type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">minOccurs</span>="<span class="verbatim-attribute-content">0</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-example" id="xml-example"></a>id</span>="<span class="verbatim-attribute-content">xml-example</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">example</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">fcn:example.elt.type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">minOccurs</span>="<span class="verbatim-attribute-content">0</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-conformance-test" id="xml-conformance-test"></a>id</span>="<span class="verbatim-attribute-content">xml-conformance-test</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">conformanceTest</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">reg:url.elt.type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">minOccurs</span>="<span class="verbatim-attribute-content">0</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-revisions" id="xml-revisions"></a>id</span>="<span class="verbatim-attribute-content">xml-revisions</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">revisions</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">reg:revisions.elt.type</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">sequence</span>&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">sequence</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attributeGroup</span> <span class="verbatim"><span class="verbatim-attribute-name">ref</span>="<span class="verbatim-attribute-content">reg:common.attribute.group</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">complexType</span>&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">element</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">complexType</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">signature.elt.type</span>"</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">sequence</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-input" id="xml-input"></a>id</span>="<span class="verbatim-attribute-content">xml-input</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">input</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">fcn:input.elt.type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">minOccurs</span>="<span class="verbatim-attribute-content">0</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">element</span> <span class="verbatim"><span class="verbatim-attribute-name"><a name="xml-output" id="xml-output"></a>id</span>="<span class="verbatim-attribute-content">xml-output</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">output</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">fcn:output.elt.type</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">sequence</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attribute</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">name</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">QName</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">use</span>="<span class="verbatim-attribute-content">required</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attributeGroup</span> <span class="verbatim"><span class="verbatim-attribute-name">ref</span>="<span class="verbatim-attribute-content">reg:common.attribute.group</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">complexType</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">complexType</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">input.elt.type</span>"</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">sequence</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">any</span> <span class="verbatim"><span class="verbatim-attribute-name">namespace</span>="<span class="verbatim-attribute-content">http://www.w3.org/1999/xhtml</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">processContents</span>="<span class="verbatim-attribute-content">skip</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">minOccurs</span>="<span class="verbatim-attribute-content">0</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">sequence</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attribute</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">string</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">use</span>="<span class="verbatim-attribute-content">required</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attribute</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">name</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">string</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">use</span>="<span class="verbatim-attribute-content">required</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attributeGroup</span> <span class="verbatim"><span class="verbatim-attribute-name">ref</span>="<span class="verbatim-attribute-content">reg:common.attribute.group</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">complexType</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">complexType</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">output.elt.type</span>"</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">sequence</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">any</span> <span class="verbatim"><span class="verbatim-attribute-name">namespace</span>="<span class="verbatim-attribute-content">http://www.w3.org/1999/xhtml</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">processContents</span>="<span class="verbatim-attribute-content">skip</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">minOccurs</span>="<span class="verbatim-attribute-content">0</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">sequence</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attribute</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">type</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">string</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">use</span>="<span class="verbatim-attribute-content">required</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attributeGroup</span> <span class="verbatim"><span class="verbatim-attribute-name">ref</span>="<span class="verbatim-attribute-content">reg:common.attribute.group</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">complexType</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">complexType</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">error.elt.type</span>"</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">sequence</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">any</span> <span class="verbatim"><span class="verbatim-attribute-name">namespace</span>="<span class="verbatim-attribute-content">http://www.w3.org/1999/xhtml</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">processContents</span>="<span class="verbatim-attribute-content">skip</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">sequence</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attribute</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">code</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">QName</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">use</span>="<span class="verbatim-attribute-content">required</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attributeGroup</span> <span class="verbatim"><span class="verbatim-attribute-name">ref</span>="<span class="verbatim-attribute-content">reg:common.attribute.group</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">complexType</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">complexType</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">example.elt.type</span>"</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">sequence</span><span class="verbatim">&gt;</span><div class="verbatim">&lt;<span class="verbatim-element-name">any</span> <span class="verbatim"><span class="verbatim-attribute-name">namespace</span>="<span class="verbatim-attribute-content">http://www.w3.org/1999/xhtml</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">processContents</span>="<span class="verbatim-attribute-content">skip</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">maxOccurs</span>="<span class="verbatim-attribute-content">unbounded</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">sequence</span>&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attribute</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">title</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">QName</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">use</span>="<span class="verbatim-attribute-content">required</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attribute</span> <span class="verbatim"><span class="verbatim-attribute-name">name</span>="<span class="verbatim-attribute-content">usage</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">type</span>="<span class="verbatim-attribute-content">QName</span>"</span> <span class="verbatim"><span class="verbatim-attribute-name">use</span>="<span class="verbatim-attribute-content">required</span>"</span><span class="verbatim">/&gt;</span></div><div class="verbatim">&lt;<span class="verbatim-element-name">attributeGroup</span> <span class="verbatim"><span class="verbatim-attribute-name">ref</span>="<span class="verbatim-attribute-content">reg:common.attribute.group</span>"</span><span class="verbatim">/&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">complexType</span>&gt;</span></div><span class="verbatim">&lt;/<span class="verbatim-element-name">schema</span>&gt;</span></div></div>
      </div>

      <div class="div1"><a name="sec-references" id="sec-references"></a>

         <h1>Appendix B References</h1>

    	    <dl>
            
            
            
            
            
            
            
            
    	    <dt class="label"><a name="REGISTRY" id="REGISTRY"></a>REGISTRY</dt><dd>XBRL International Inc.. "XBRL Registry 1.0"<br>Geoff Shuetrim.<br>(See <a href="registry-PWD-2008-12-31.html">registry-PWD-2008-12-31.html</a>)</dd><dt class="label"><a name="VARIABLES" id="VARIABLES"></a>VARIABLES</dt><dd>XBRL International Inc.. "XBRL Variables 1.0"<br>Phillip Engel, Herm Fischer, Victor Morilla, Jim Richards, Geoff Shuetrim, David vun Kannon, and Hugh Wallis.<br>(See <a href="http://www.xbrl.org/Specification/variables/REC-2009-06-22/variables-REC-2009-06-22.html">http://www.xbrl.org/Specification/variables/REC-2009-06-22/variables-REC-2009-06-22.html</a>)</dd><dt class="label"><a name="XHTML" id="XHTML"></a>XHTML</dt><dd>W3C (World Wide Web Consortium). " XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)"<br>(See <a href="http://www.w3.org/TR/xhtml1/">http://www.w3.org/TR/xhtml1/</a>)</dd><dt class="label"><a name="XML" id="XML"></a>XML</dt><dd>W3C (World Wide Web Consortium). "Extensible Markup Language (XML) 1.0 (Fourth Edition)"<br>Tim Bray, Jean Paoli, C. M. Sperberg-McQueen, Eve Maler, and François Yergeau.<br>(See <a href="http://www.w3.org/TR/REC-xml/">http://www.w3.org/TR/REC-xml/</a>)</dd><dt class="label"><a name="XMLNAMES" id="XMLNAMES"></a>XML NAMES</dt><dd>W3C (World Wide Web Consortium). "Namespaces in XML 1.0 (Second Edition)"<br>Tim Bray, Dave Hollander, Andrew Layman, and Richard Tobin.<br>(See <a href="http://www.w3.org/TR/REC-xml-names/">http://www.w3.org/TR/REC-xml-names/</a>)</dd><dt class="label"><a name="XMLSCHEMA-STRUCTURES" id="XMLSCHEMA-STRUCTURES"></a>XML SCHEMA STRUCTURES</dt><dd>W3C (World Wide Web Consortium). "XML Schema Part 1: Structures Second Edition"<br>Henry S. Thompson, David Beech, Murray Maloney, and Noah Mendelsohn.<br>(See <a href="http://www.w3.org/TR/xmlschema-1/">http://www.w3.org/TR/xmlschema-1/</a>)</dd><dt class="label"><a name="XMLBASE" id="XMLBASE"></a>XMLBASE</dt><dd>W3C (World Wide Web Consortium). "XML Base"<br>Johnathan Marsh.<br>(See <a href="http://www.w3.org/TR/xmlbase/">http://www.w3.org/TR/xmlbase/</a>)</dd><dt class="label"><a name="XPATH2" id="XPATH2"></a>XPATH 2.0</dt><dd>W3C (World Wide Web Consortium). "XML Path Language (XPath) 2.0"<br>Anders Berglund, Scott Boag, Don Chamberlin, Mary F. Fernández, Michael Kay, Jonathan Robie, and Jérôme Siméon.<br>(See <a href="http://www.w3.org/TR/xpath20/">http://www.w3.org/TR/xpath20/</a>)</dd></dl>

      </div>

      <div class="div1"><a name="sec-ip-status" id="sec-ip-status"></a>
        <h1>Appendix C Intellectual property status (non-normative)</h1>
        
        <p>
          This document and translations of it may be copied and
          furnished to others, and derivative works that comment on or
          otherwise explain it or assist in its implementation may be
          prepared, copied, published and distributed, in whole or in
          part, without restriction of any kind, provided that the above
          copyright notice and this paragraph are included on all such
          copies and derivative works. However, this document itself may
          not be modified in any way, such as by removing the copyright
          notice or references to XBRL International or XBRL
          organizations, except as required to translate it into
          languages other than English. Members of XBRL International
          agree to grant certain licenses under the XBRL International
          Intellectual Property Policy 
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        </p>
      
      
        <p>
          This document and the information contained herein is provided
          on an "AS IS" basis and XBRL INTERNATIONAL DISCLAIMS ALL
          WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
          ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT
          INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
          MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
        </p>
      
        <p>
          The attention of users of this document is directed to the
          possibility that compliance with or adoption of XBRL
          International specifications may require use of an invention
          covered by patent rights. XBRL International shall not be
          responsible for identifying patents for which a license may be
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          neither does it represent that it has made any effort to
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        </p>
      </div>

      <div class="div1"><a name="sec-acknowledgements" id="sec-acknowledgements"></a>
        <h1>Appendix D Acknowledgements (non-normative)</h1>
        <p>
          This document could not have been written without the
          contributions of many people including the participants in the
          FWG.
        </p>
      
      </div>
    
      <div class="div1"><a name="sec-history" id="sec-history"></a>
         <h1>Appendix E Document history (non-normative)</h1>
      
         <table class="revisions"><tr><th>Date</th><th>Author</th><th>Details</th></tr>

            <tr><td>17 January 2008</td><td>Geoff Shuetrim</td><td>
               <p class="revision">
            First internal working draft created.
          </p>
            </td></tr>

            <tr><td>29 January 2008</td><td>Geoff Shuetrim</td><td>
               <p class="revision">
            Added in element documentation to the initial skeleton draft
            based on the normative schema.
          </p>
            </td></tr>

            <tr><td>30 January 2008</td><td>Geoff Shuetrim</td><td>
               <p class="revision">
            Relaxed the requirement that data types for function signatures
            be expressed as QNames given the need to deal in sequences.
          </p>
            </td></tr>

            <tr><td>31 January 2008</td><td>Geoff Shuetrim</td><td>
               <p class="revision">
            Adapted hyperlinks to use XLink simple link syntax.
          </p>
            </td></tr>

            <tr><td>04 February 2008</td><td>Geoff Shuetrim</td><td>
               <p class="revision">
            Added error code details and created more structure for
            information about input parameters of the function being
            defined.
          </p>
            </td></tr>

            <tr><td>12 June 2010</td><td>Herm Fischer</td><td>
               <p class="revision">
            Errata 1: Added XPath 2.0 error code references for wrong number of parameters
            and mismatched type of parameter in function call.
          </p>
            </td></tr>

         </table>

      </div>

      <div class="div1"><a name="sec-corrections" id="sec-corrections"></a>
         <h1>Appendix F Errata corrections in this document</h1>
      
         <p>
        This appendix contains a list of the errata that have been
        incorporated into this document. This represents all those
        errata corrections that have been approved by the XBRL
        International FWG up to and
        including 22 June 2009. 
        Hyperlinks to relevant e-mail threads may
        only be followed by those who have access to the relevant
        mailing lists. Access to internal XBRL mailing lists is
        restricted to members of XBRL International Inc.
      </p>

         <p>No errata have been incorporated into this document.</p>

      </div>

  </div>
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